Finding the Fourth Proportional to 126,510.78, 174,715.61 and 109,433.04

Step by Step Solution

1. Step 1: Write the proportion equation
   126,510.78 : 174,715.61 = 109,433.04 : x
2. Step 2: Convert to fraction form
   126,510.78/174,715.61 = 109,433.04/x
3. Step 3: Cross multiply
   126,510.78x = 174,715.61 × 109,433.04
4. Step 4: Simplify right side
   126,510.78x = 19,119,659,790.59
5. Step 5: Solve for x
   x = 19,119,659,790.59/126,510.78
6. Step 6: Final answer
   x = 151,130.68